- #1
mattysimins
- 4
- 0
I have to show that the capacitance per unit length for two identical wires of radius d separated (at the center) a distance D as:
C/l = (pi epsilon0) / ( ln [( D - d ) / d]
And I'm clueless. How do I go about solving this?
I started by trying with C = q / V to C = lambda * l / V .. but I didn't get far as I didn't know what to do with lambda.
Edit: they are oppositely charged, and the charge is distributed evenly along the surface of each wire.
C/l = (pi epsilon0) / ( ln [( D - d ) / d]
And I'm clueless. How do I go about solving this?
I started by trying with C = q / V to C = lambda * l / V .. but I didn't get far as I didn't know what to do with lambda.
Edit: they are oppositely charged, and the charge is distributed evenly along the surface of each wire.